Home / 20,904.59-31,346.49-7,577.04

Finding the Fourth Proportional to 20,904.59, 31,346.49 and 7,577.04

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Solution

The fourth proportional to 20,904.59, 31,346.49 and 7,577.04 is: 11,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.59 : 31,346.49 = 7,577.04 : x
  2. Step 2: Convert to fraction form
    20,904.59/31,346.49 = 7,577.04/x
  3. Step 3: Cross multiply
    20,904.59x = 31,346.49 × 7,577.04
  4. Step 4: Simplify right side
    20,904.59x = 237,513,706.60
  5. Step 5: Solve for x
    x = 237,513,706.60/20,904.59
  6. Step 6: Final answer
    x = 11,361.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.